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Russula subnigricans is a poisonous mushroom, and has been responsible for mushroom poisoning in Taiwan and Japan. The effect is a serious one, rhabdomyolysis. The toxins responsible are the very unusual cycloprop-2-ene carboxylic acid (a toxic molecule consisting of only 10 atoms) and Russuphelin A (a heavily chlorinated polyphenolic).
Jack-O'lantern mushroom illudin S [33] [34] Europe Cantharellus spp. Omphalotus olivascens: Western jack-o'-lantern mushroom illudin S [35] America Cantharellus spp. Paralepistopsis acromelalga: acromelic acid: Japan Paralepista flaccida. Paralepista gilva. Paralepistopsis amoenolens: Paralysis funnel acromelic acid: North Africa and Europe ...
Despite the difficulty in positively identifying collected specimens, the possibility to spot the toxic species by their acrid taste makes some of the mild species, such as R. cyanoxantha and R. vesca, popular edible mushrooms. Russula is mostly free of deadly poisonous species, and mild-tasting ones are all edible. [14] [failed verification]
Among toxic substances, Lactarius turpis contains the mutagenic alkaloid necatorin, [121] and the small compound cycloprop-2-ene carboxylic acid has been identified as the toxic agent in Russula subnigricans. [133] Some secondary metabolites showed antibiotic properties in laboratory tests. [128]
Russula rhodocephala, also known as the redhead russula, is a species of gilled mushroom. [1] It typically grows in association with pine trees. [ 2 ] It is primarily found on the Pacific coast of western North America, although mushrooms with 97 percent genetic similarity are known from Asia.
Russula emetica, commonly known as the sickener, emetic russula, or vomiting russula, is a basidiomycete mushroom, and the type species of the genus Russula. It has a red, convex to flat cap up to 8.5 cm (3.3 in) in diameter, with a cuticle that can be peeled off almost to the centre. The gills are white to pale cream, and closely spaced.
Russula aeruginea, also known as the grass-green russula, the tacky green russula, or the green russula, is an edible Russula mushroom. Widely distributed in northern temperate regions, it is usually found under birch, mostly in pine forests. The very poisonous death cap can have a similar appearance, especially from above.
Russula cyanoxantha, commonly known as the charcoal burner or variegated russula, [1] is a basidiomycete mushroom. It can be confused for a number of other members of its genus. It can be confused for a number of other members of its genus.